21728762

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2539}}^1$

素因数の和:2941

約数の個数: 16

約数和(自身を含む): 35661600

約数和(自身を除く): 13932838

約数列:

[1, 2, 11, 22, 389, 778, 2539, 4279, 5078, 8558, 27929, 55858, 987671, 1975342, 10864381, 21728762]

約数ペア:

[(1, 21728762), (2, 10864381), (11, 1975342), (22, 987671), (389, 55858), (778, 27929), (2539, 8558), (4279, 5078)]